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Finding the Fourth Proportional to 3,995.88, 5,996.63 and 1,499.21

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Solution

The fourth proportional to 3,995.88, 5,996.63 and 1,499.21 is: 2,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.88 : 5,996.63 = 1,499.21 : x
  2. Step 2: Convert to fraction form
    3,995.88/5,996.63 = 1,499.21/x
  3. Step 3: Cross multiply
    3,995.88x = 5,996.63 × 1,499.21
  4. Step 4: Simplify right side
    3,995.88x = 8,990,203.91
  5. Step 5: Solve for x
    x = 8,990,203.91/3,995.88
  6. Step 6: Final answer
    x = 2,249.87

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Half scale
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Double scale
Find fourth proportional to 3,996.88, 5,998.13 and 1,500.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.